CVE-2026-100278
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Privilege Escalation in JetBrains YouTrack via Comment Editing

Publication date: 2026-09-30

Last updated on: 2026-09-30

Assigner: JetBrains s.r.o.

Description
In JetBrains YouTrack before 2026.2.19197 users with restricted permission could edit and hide other users' comments

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Meta Information

Published
2026-09-30
Last Modified
2026-09-30
Generated
2026-09-30
AI Q&A
2026-09-30
EPSS Evaluated
N/A
NVD
CVE-2026-100278
EUVD
EUVD-2026-90022

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
jetbrains youtrack to 2026.2.19197 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

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Executive Summary

In JetBrains YouTrack before version 2026.2.19197, users with restricted permissions could edit and hide comments made by other users. This is a security flaw because it allows unauthorized modification of user-generated content, potentially altering records or concealing important information without proper access rights.

Impact Analysis

This vulnerability could allow attackers with limited access to manipulate or remove comments from other users, leading to misinformation, data tampering, or loss of critical audit trails. It undermines trust in the system and may affect decision-making based on altered comments.

Compliance Impact

This vulnerability could violate compliance requirements that mandate data integrity and non-repudiation, such as GDPR's accountability principle or HIPAA's integrity safeguards. Unauthorized editing of comments may result in non-compliance, legal risks, or penalties due to compromised record-keeping.

Mitigation Strategies

Update JetBrains YouTrack to version 2026.2.19197 or later to address the vulnerability where restricted users could edit or hide comments.

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